Ultrafast Relaxation Dynamics of Osmium−Polypyridine Complexes in Solution
| Autor: | Andrea Cannizzo, Olivier Bräm, Fabrizio Messina, Majed Chergui, Etienne Baranoff, Mohammad Khaja Nazeeruddin |
|---|---|
| Přispěvatelé: | Braem, O, Messina, F, Baranoff, E, Cannizzo, A, Nazeeruddin, MK, Chergui, M |
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Photoluminescence
Absorption spectroscopy Chemistry Quantum yield Photochemistry Surfaces Coatings and Films Electronic Optical and Magnetic Materials General Energy Intersystem crossing Photoluminescence excitation Singlet state Physical and Theoretical Chemistry Triplet state Phosphorescence ultrafast metal complex fluorescence upconversion osmium |
| Popis: | We present steady-state absorption and emission spectroscopy and femtosecond broadband photoluminescence up-conversion spectroscopy studies of the electronic relaxation of Os(dmbp)(3) (Os1) and Os(bpy)(2)(dpp) (Os2) in ethanol, where dmbp is 4,4'-dimethyl-2,2'-biypridine, bpy is 2,2'-biypridine, and dpp is 2,3-dipyridyl pyrazine. In both cases, the steady-state phosphorescence is due to the lowest (MLCT)-M-3 state, whose quantum yield we estimate to be |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|